Memory Anchor:

• Super Challenge:

  Stretch:

  Challenge:

Key Questions:

1. What is the role of a machine in terms of forces?
   • A machines transmits a Force from one place or object to another.
2. What is the advantage and disadvantage of a simple machine?
   • Simple machines give bigger Force but at the expense of smaller movement (and vice versa)
3. Give 3 examples of simple machines.
   • Simple machines include: - Ramps - Levers - Pulleys - Wedge - Screw
4. What is work done? What is work done also known as? What unit do we use for work done?
   • The product of Force and displacement is work done. Work done is also known as Energy transferred. The unit of work done is therefore Joules.
5. What is the relationship between energy transferred in and work done?
   • The 'Energy transferred in' is equal to the work done.